Dioptase and Calcite Crystals on Matrix - NTS 007

Unusualy shaped dioptase crystals on calcite crystals, on matrix

Measurements:  28 x 21 x 15 mm

Description:  Very unusually shaped small crystals of dioptase (about 1.5 mm on edge) sit on small cubic, as well as drusy calcite crystals. These, in turn, sit on a conglomerate calcite matrix.

No obvious damage.

Weight of Specimen:  8.3 g

Chemical Composition:  Cu2+SiO2(OH)2  (dioptase)
                                       CaCO3  (calcite)             

Hardness on Mohs Scale:  (dioptase)  5  
                                          (calcite)  3

Location:  Tsumeb, Northern Namibia.

Specimen Code:  NTS 007

US $ 65

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